Networking 5

What is NOT one of the ways in which networks are commonly segmented?

• by departmental boundaries

• by device types

• by device manufacturer

• by geographic location

You have been tasked with the creation and design of a network that must support a minimum of 5000 hosts. Which network accomplishes this goal?

• 10.90.0.0/22

• 10.3.0.0/19

• 192.168.0.0/20

• 172.20.50.0/23

A network with 10 bits remaining for the host portion will have how many usable host addresses?

• 1022

• 4192

• 510

• 2046

A network with a CIDR notation of /26 would have what subnet mask?

• 255.255.255.192

• 255.255.255.0

• 255.255.255.224

• 255.255.255.240

By default, when using classful addressing, how many bits exist in the host portion of a Class A address?

• 24

• 16

• 8

• 32

How many subnets can a /48 site prefix support?

• 16384 subnets

• 131,072 subnets

• 256 subnets

• 65,536 subnets

Given a host IP address of 172.16.1.154 and a subnet mask of 255.255.254.0, what is the network ID for this host?

• 172.0.0.0

• 172.16.2.0

• 172.16.0.0

• 172.16.1.0

You are working on a Cisco switch and need to learn what VLANs exist on the switch. Which command will list the current VLANs recognized by the switch?

• list switch-vlans

• show vlan

• get vlans

• show vlandb

How many /64 subnets can be created within a /56 prefix?

• 256

• 512

• 1024

• 2048

Which of the following suggestions can help prevent VLAN hopping attacks on a network?

• Install a router to process the untagged traffic on the VLAN.

• Use MAC address filtering.

• Install an additional switch to isolate traffic.

• Disable auto trunking and move native VLANs to unused VLANs.